294993

Ammonia

anhydrous, ≥99.98%

• Sinonimo/i: Ammonia gas
• Formula condensata: NH₃
• Numero CAS: 7664-41-7
• Peso molecolare: 17.03
• Beilstein: 3587154
• Numero CE: 231-635-3
• Numero MDL: MFCD00011418
• Codice UNSPSC: 12142100
• ID PubChem: 24857750
• NACRES: NA.22

Proprietà

• Grado: anhydrous
• Livello qualitativo: 200
• Densità del vapore: 0.6 (vs air)
• Tensione di vapore: 8.75 atm ( 21 °C)
• Saggio: ≥99.98%
• Forma fisica: liquefied gas
• Temp. autoaccensione: 1203 °F
• Limite di esplosione: 25 %
• Caratteristiche più verdi: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• pH: ~10-12 (20 °C, 50 g/L)
• pKa (25 °C): 9.25
• P. eboll.: −33 °C (lit.)
• Punto di fusione: −78 °C (lit.)
• Solubilità: water: 531 g/L at 20 °C
• Densità: 0.7 g/cm³ at -33 °C
• Categoria alternativa più verde: Enabling,
• Stringa SMILE: N
• InChI: 1S/H3N/h1H3; QGZKDVFQNNGYKY-UHFFFAOYSA-N

Descrizione

Descrizione generale

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.

Applicazioni

Ammonia may be used as a base to adjust pH for preparing mixed magnetite-hematite nanoparticles via combustion method. These nanoparticles show promising potential as sorbents for removing heavy metal ions from water.

Anhydrous ammonia has been used in dynamic reaction cell technology (DRC) to remove interfering ions without the loss of sensitivity. It has also been used for adjusting pH during the synthesis of magnetite-hematite mixture by combustion methods.

Reagent for chemical vapor deposition of TiN.

Confezionamento

Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.

Compatible with the following:

• Aldrich^® lecture-bottle station systems
• Aldrich^® lecture-bottle gas regulators

Altre note

See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation

Note legali

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Informazioni sulla sicurezza

• Pittogrammi: GHS04,GHS06,GHS05,GHS09
• Avvertenze: Danger
• Indicazioni di pericolo: H221,H280,H314,H331,H410
• Consigli di prudenza: P210 - P260 - P280 - P303 + P361 + P353 - P305 + P351 + P338 - P403 + P233 - P410 + P403
• Classi di pericolo: Acute Tox. 3 Inhalation - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Flam. Gas 2 - Press. Gas Liquefied gas - Skin Corr. 1B
• Rischi supp: EUH071
• Codice della classe di stoccaggio: 2A - Gases
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable
• Dispositivi di protezione individuale: Faceshields, Gloves, Goggles, multi-purpose combination respirator cartridge (US)